Question about iLO DVDR05 DVD Recorder

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DVDR05 Power Supply Board: No output, top blown

DVDR05 Power Supply Board: No output, top blown off IC1, STR(I think)next to Transformer and D5 is open, D3(regulater I think) is open. Need relacement parts and circuit diagram. Anyone Please. Mel Brooks, k5djb@att.net. Thank you.

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  • kenwhite73 Mar 09, 2009

    Mine makes noises in the same area then shuts off problems with that power supply board may be common. Mine worked wonderful for months now its just a paper weight.
    Don't they stand behind their products, It would be a good idea to supply replacement parts.


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Try a small sledge hammer for some up close and personal work.

Posted on Mar 01, 2009

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My Toshiba RDXV60 stopped working, there are no lights no sound and will not respond to the remote or to button operation.


if you want to confirm if the transformer in the power supply is also bad you have to make a voltage checking. turn on the dvd player and make a voltage checking at the output at the power supply board.

Nov 19, 2012 | DVD & Blu-Ray Players

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Best bet is to replace all of the electrolytic capacitors in the power supply one by one, noting original capacitance values, and voltages (capacitance values are marked in µF as well as their voltage on their jackets), uprating the value/voltage where necessary, and observing polarity (the negative pole is marked by a stripe down one side of the cap, and replacements should have this opposite the + symbol on the board) when fitting new ones in the PSU.

It may also require replacement of IC1, a 12V 5 pin IC regulator, since this may have been partially damaged by the increased output voltage of the failing electrolytic caps in close proximity to it. This device has its type number (prefixed by STR) on its face, and should be available from Panasonic. Make sure if you order a replacement, that it is for THIS MODEL only, and that it is for the power supply in this unit.

Before you go out and buy a whole bunch of new electrolytic capacitors (available from most electronics stores including Radio Shack etc), take a visual look at the power supply (unplug unit from power point, and carefully remove the power board.) Examine it carefully, and note each capacitor that you can the value/voltage of - write it down, and obtain the closest replacements of each. Don't panic if you can't get a 20V 680µF, use a 25V 1000µF instead.

The total cost depends on how many electrolytic capacitors require replacing, but it is best to replace ALL of them one by one, to ensure reliability of the circuit they are in, in this case, the power supply. Don't worry about the IC regulator or any other parts just yet, do the caps first, as these are not terribly expensive, before taking any further action.

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1 Answer

Self check not stopping continuously running


Power supply may require all of the electrolytic capacitors to be replaced, along with IC1, a 12V 5 pin IC regulator. Note the original capacitance values and voltages of each cap before replacing any, and/or uprating their voltages. Also note the polarity of each cap in relation to the markings on the board (the + on the board should be opposite the negative marking/stripe on the cap).

It is best to replace all of these caps as well as the IC (type number prefixed by STR and should be available from Panasonic for this model), since this device may have been damaged by increased output voltage from the faulty electrolytic caps in close proximity to it.

If you are tech.savvy and have some experience with a soldering iron, you have a basic understanding of capacitors and their function, as well as extreme patience (this repair is time-consuming), plus you are not too concerned about the cost of parts (the caps are not terribly expensive), you should be able to repair this unit yourself.

Otherwise, it will have to go to an authorised Panasonic service centre, for repair by a qualified technician in a fully equipped workshop. If you decide to go this way, get a quote on the likely repair costs, and a second opinion on whether it is economical to fix or not - but it is up to you as to what course of action you take afterwards.

The downside is if you do take the unit to a repair centre, you could be without it for several weeks.

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1 Answer

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If you are not tech. savvy, submit the unit to an authorised Panasonic service centre for a quote on the likely cost(s) involved, and get a second opinion as to whether it is economical to repair or not (they may also be able to tell you more; for example if a new power board is required or not) - you can make a firm decision afterwards as to what to do - up to you.

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1 Answer

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IC1 in the power supply is the most likely possible cause, affecting the main voltage rail (should be about +12V). Using an oscilloscope, check this device, see if the voltage varies or is low, and order a replacement component (prefix STR or similar). It might also be a good idea to upgrade the firmware (but only do this by obtaining the correct version from Panasonic for your model). Check for bad solder joints in the PSU too, just to be safe.

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Check power supply. Check the fuse. If it isn't blown, check all components within this board, including the IC regulators (however many this model uses for PSU - should be marked IC1 or similar reference) - check for short-circuit/open-circuit/leakage. Also check all of the electrolytic capacitors - some may have leaked. Check resistors diodes etc. for shorts, leakage or open circuit. Also go over the entire board for dry solder joints too - just to be sure, and re-solder any suspect joints. If the power supply uses a transformer, check this for open windings, particularly on its primary side (the side facing the power cord), most switchmode power supplies use a chopper transformer which can sometimes fail.

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